Don't be scared. The first times I projected it was against my will and I fought it too. I used to hear and see the scariest stuff but once you lose your fear the "stuff" goes away. The fear manifests itself. It could be your imagination trying to make sense of your fear and creating sounds and images. It could be lower forms messing with you (they are easy to shoe away). Or it could be something positive and you're just afraid of it (i.e. maybe it was your guide speaking and wanting you and your sis to project together?). So don't fret. Relax when it happens and know that you have all the power. Also don't get frustrated if you can't control it or understand your experiences all the time. It really can be a wonderful experience. I still can't fully control what I do or understand what I see. This is a great web site for support but also know that many things you might read that other people can see and do might not be your experiences, it's a very personal thing. Enjoy your own journey. And if you are out and calm the next time ask for your guide, or guidance in general, and a helpful soul might give you some clarity.